{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898096,-0.439799,0.000000,0.000000,0.284308,-0.580574,0.762957,0.000000,-0.334603,0.683281,0.648975,0.000000,-2137161.686637,4364213.471196,4117348.730318,1],    "boundingVolume": {    "region": [2.026105,0.706125,2.026237,0.706347,0.000000,15.709792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1821177.b3dm"}}}